Whetstone-box.



K. cmsou.

- WHETSTONE BOX.

APPLICATION HLED'APR. ".1918- was KNUT CARLSOIE, ill YOllZKER-S, ELEV? 2133K.

WHETS'IONE-BOX.

i ,eeaeie Specification of Letters Patent.

Patented Feb. 18, 191%.

Application filed April 17, 1918. Serial No. 229.144.

T 0 all whom it may concern:

Be it known that I, KNUT CARIsoN, a citizen of the United States, residing at Yonkers, in the county of Westchester and State of New York, have invented certain new'and useful Improvements in Whetstone- Boxes, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to boxes .or cases A further object is toiprovide means for supporting the Whetstone out of contactwith the box proper} and permitting the whetstone to be turned to bring either side into operative position. v

Still another object is ,to provide a box or case formed of two cover sections hinged to each other and to a stone holder, the sections being so formed as to have abutting engagement when they are turned to entirely inclose the whetstone, to thus prevent access of dust to the Whetstone.

Another object is to provide Whetstone engaging means, which isadjustable in a very simple manner so as to provide for the support of whetstones, differing in. length or breadth. 1

Still another object 18 to provide a construction of this kind, which is very simple,

may be cheaply made, and which is very effective in practice. Other objects will appear in the course of thetollowing description.

My invention is illustrated in the accompanying drawings, wherein: I

Figure 1. is a perspective view of a whet stone box constructed in accordance with my invention; v

Fig. 2 is a transverse section of the box with the two sections of the box opened out and showing in dotted lines the manner in which the stone may be turned to disclose its other face; and I Fig. 3 is a. plan view of the Whetstone clamp or holder.

Referring to these drawings, it will be seen that the box or case proper consists of two cover sections 10 and 11, each section being formed with a bottom and four walls, the walls of the. sections being" designated 12. Each wall of each Section is rahheted or re cessed as at 13, and each se tion is prefeo ably provided with rubber i' P-Z'l' 14, by which "the box may be supported.

The whetstono-or oil stone 153 is a combination stone, that is, it is formed of two stones (1. and I), one of relatively fine grain, for instance, and the other of relatively coarse grain, or having other different characteristics, these two sections being conj iued with each other in any suitable manner, so as to practically form one stone. The whetstone 15 need not be formed in two sections, however, but one integral stone may be used, Either side of which may be disclosed for sharpening purposes.

For the purpose of supporting the stone, 1 provide a clamp or holder, consisting of a frame, surrounding and bearing against the edges of the stone, this frame being formed of the four angularsections 16,

joined by the longitudinally extending rotatable members 17 and the transversely extending rotatable members 18. The mom bers 17 are screw-threaded at their ends for transverse apertures 19, whereby av key or wrench may be applied to rotate the members 17 and 18 and thereby draw the angular clamping members 16 toward each other, or shift them away from each other. By this means, the frame, formed of the members 16, 17 and 18, maybe enlarged or rendered smaller in order to engage stones having vario11s"widtlis and lengths within certain limits. and furthermore this arrangement provides for the firm clamping of the stone in the holder or its removal and for the adjustment of the stone.

For the purpose of hingedly connecting the two sections 10 and 11 of the casing to each other, I provide the. hinge leaves 20 and 21, attached to a si .e wall of the sections 10 or 11, each of the hinge leaves being formed with the usual beads and the leaves being hingedly connected to each other by means of a longitiulinally extending pintle 22 having legs :23, which are formed as part of or engaged with the corresponding members '16, as illustrated in Fig. 3. Itwill thus be seen that the leaves 21 and 22 may rotate upon each other independently of the pintle or that the pintle may rotate independently of the hinge I leaves, and that thus the sections 10 and 11 may be closed upon each other or opened out as in Fig. 2, and that the stone clamping frame may be rotated so as to carry the stone into either of the sections 10 or 11 and that by so shifting this stone, one face or the other face of the stone will be exposed.

It will likewise be seen from Fig. 2 that the members 16 will rest in the rabbets 13 and that these rabbets have a depth equal to one-half the thickness of the members 16. The stone is preferably of such thick-. ness initially that when properly supported in the clamp, it will not touch the bottom of the casing section 10 or 11. The members 10 are also of. such width that the side faces of the stone will not contact withthe faces of the side or end walls of the box, when the box is closed or opened.

' It will be seen that by means of this whetstone mounting, the stone is supported with the surface to be used sutlic'iently above any portion of the casing so that 'there is no impediment to the proper use of the stone. It will further be seen that by the construction of the frame formed of the members 16, 17 and 18, the stone may be firmly clamped at its four corners, so that the stone will 'be evenly supported against downward pressure of the knife or other article being sharpened thereon and so that the stone will not swing or tend to shift \vitliiii the frame.

By turning the frame into a vertical plane,

- it is relatively easy to rotate the members 17 and 18 so as to expand the frame and permit the removal of the stone or retract the frame to clamp the stone in position. it

will be seen that the device is very simple, that it may be cheaply made and that it is thoroughly effective for the purpose intended, and furthern'mre that because of the relatively wide bearing surfaces between the sections. when the sections are closed upon each other, that the sections will be supported at all times in spaced relation to the stone.

It will be noted that the walls 12 of each cover section are relatively wide and that when the cover sections are closed upon each other, these walls have abutting contact, thus preventing dust from entering between the cover sections andliaving access to the stone. Furthermore, because of the wide area of contact between the cover sections when they are closed, the margins of the cover sections will not be forced'past each other, and thus bring the cover sections into cont-a ct stone. i

Having described my invention, what I claim is:

A Whetstone case formed of two halfcover sections, a Whetstone holder disposed between the cover sections and comprising four angular corner sections and means whereby the angular corner sections may be adjusted toward or from each other and held in their adjusted positions, two pairs of hinge leaves mounted on the cover sec: tions and coacting with each other, a pintle passing through and connecting one pair of hinge leaves and connected to one of the angular corner sections, and a pintle mounted upon the opposite corner section .and passing throughand pivotally, connecting the other pair of hinge leaves, said last named pintle having a length greater than the length of the hinge leaves through which it passes, to thereby permit movement of the.

last named angular corner section relative to the first named corner section.

In testimony whereof I hereunto aliix my signature in the presence of two witnesses. KN UT CARLSON. Witnesses:

OSCAR Fonssnno, ALBERT SWANSON.

with the opposite faces of the, 

